Your working hours on point.

Calculate net working hours — instantly, precisely and without registration.

Time Tracking
Typical hours: 06:00 – 10:00
Typical hours: 15:00 – 20:00
Min.
Target Hours: Hours / Day
Result
Gross Work Time
Break Duration
Net Work Time
Overtime
Weekly Trend
Actual Hours Target Hours
Weekly Overview
Weekday Date Gross Break Net Overtime Status
Total
21 kostenlose Tools

Alle Rechner im Überblick

Von Arbeitszeit bis Zuschlag — finde den passenden Rechner für deine Anforderung.

Arbeitszeit Rechner Pro

Trage Arbeitsbeginn, Arbeitsende und Pausen ein — die Netto-Arbeitszeit wird sofort berechnet.

Stundenlohn Rechner

Erfahre in Sekunden, wie viel du pro Arbeitsstunde verdienst.

Arbeitsstunden Rechner

Erfasse jeden Arbeitstag einzeln — der Rechner summiert deine Stunden automatisch.

Teilzeit Rechner

Berechne deine Teilzeit-Stunden, das anteilige Gehalt und den Urlaubsanspruch.

Urlaubsgeld Rechner

Berechne dein gesetzliches Urlaubsentgelt und die zusätzliche Sonderzahlung.

Urlaubstage Rechner

Berechne deinen exakten Urlaubsanspruch — auch bei Teilzeit und Jobwechsel.

Arbeitsstundenrechner

Wandle Stunden:Minuten in Dezimalstunden um — für Lohnabrechnung und Buchhaltung.

Nachtzuschlag Rechner

Berechne deine steuerfreien Nachtzuschläge für Arbeit zwischen 23:00 und 06:00 Uhr.

Überstunden Rechner

Vergleiche deine Ist-Arbeitszeit mit dem Soll — Überstunden und Minusstunden auf einen Blick.

Stunden und Minuten Rechner

Addiere, subtrahiere und konvertiere Zeitangaben — ohne Kopfrechnen.

Wochenstunden Rechner

Verteile deine Wochenstunden auf Arbeitstage — tägliche Soll-Zeit sofort sehen.

Schichtzulagen Rechner

Berechne Zuschläge für jede Schichtart — inklusive Steuerfrei-Prüfung und TVöD/Tarif-Vergleich.

Zeiterfassung Rechner

Erfasse Start, Ende und Pausen digital — BAG-konform und ohne Installation.

Feiertagszuschlag Rechner

Berechne den Zuschlag für Feiertagsarbeit — mit Steuerfrei-Grenze und Ersatzruhetag.

Sonntagszuschlag Rechner

Berechne den steuerfreien Sonntagszuschlag — 50 % Freigrenze nach § 3b EStG.

Feierabend Rechner

Finde heraus, wann du heute Feierabend hast — mit Pausen und Soll-Stunden.

Wochenarbeitszeit Rechner

Erfasse deine tatsächliche Wochenarbeitszeit und vergleiche mit dem Tarifvertrag.

Gleitzeit Rechner

Berechne deinen Gleitzeitkonto-Saldo — Plus, Minus und Gleittage im Blick.

31

Monatsstunden Rechner

Rechne Wochenstunden in Monatsstunden um — mit dem exakten Faktor 4,333.

Resturlaub Rechner

Berechne, wie viele Urlaubstage dir noch zustehen — mit Verfallswarnung.

Arbeitszeiterfassung Rechner

Dokumentiere deine Arbeitszeiten lückenlos — so wie es das Gesetz verlangt.

What Is a Work Time Calculator?

A work time calculator is an online tool that computes actual working time from start time, end time, and break durations. The result is net working time — the time actually worked and compensated. Employees, freelancers, and businesses use the calculator for daily time tracking, timesheets, and payroll.

The calculator distinguishes between gross working time (total time from start to end) and net working time (gross time minus all breaks). It also converts hours and minutes to decimal hours (industrial hours) — the format used in accounting and payroll.

Our calculator automatically detects night shifts, calculates overtime compared to target hours, and all calculations run locally in the browser — no data is sent to servers.

ArbeitszeitArbeitsstundenPausenÜberstundenSollstundenNettoarbeitszeitBruttoarbeitszeitZeiterfassungTeilzeitVollzeitSchichtarbeitNachtarbeitArbeitsvertragArbeitstageArbeitswocheMonatliche ArbeitszeitJährliche ArbeitszeitArbeitszeitkontoArbeitszeiterfassungArbZGTVöDDezimalstunden

How Does the Work Time Calculator Work?

The calculator computes your net working time in 4 simple steps. No registration, no installation — works directly in the browser.

1

Enter Start Time

Enter the time you started work. The format is HH:MM in 24-hour system, e.g., 08:00 or 07:30.

2

Enter End Time

Enter the time you finished work. Night shifts are automatically detected — if end time is before start time, the calculator counts across midnight.

3

Set Break Times

Enter total break duration in minutes. You can also add multiple breaks with individual durations. Breaks are deducted from gross working time.

4

Read Results

The calculator instantly shows: gross working time, net working time, overtime, and decimal conversion. Results can be saved to the weekly overview or copied.

Calculate Working Time – Formula

Working time calculation follows simple mathematical formulas. Here are the three key formulas the calculator uses internally:

Net Working Time
End Time − Start Time − Break Time = Net Working Time

Net working time is the compensated working time after deducting all breaks.

Gross Working Time
End Time − Start Time = Gross Working Time

Gross working time is the total attendance time without break deduction.

Decimal Hours
Hours + (Minutes ÷ 60) = Decimal Hours

Decimal hours are used in payroll and accounting. 7:45 = 7.75 decimal hours.

📐 Calculate Working Time – Formula

Example: Start 08:00, End 17:00, Break 30 min → Gross: 9:00 (9.00 h) · Net: 8:30 (8.50 h)

Calculate Working Time with Breaks

Rest breaks interrupt working time and do not count as paid time. Labor law prescribes minimum breaks that must be deducted from gross working time.

Mandatory Break Times

Employers must provide break times. Employees must actually take the breaks. Breaks can be split into segments of at least 15 minutes.

Up to 6 hours
No break required
0 Min.
Over 6 to 9 hours
30 Min.
30 Min.
Over 9 hours
45 Min.
45 Min.
Working Time Minimum Break Legal Basis
Up to 6 hours No break required Labor Law
Over 6 to 9 hours 30 minutes Labor Law
Over 9 hours 45 minutes Labor Law

Calculation Examples with Breaks

Arbeitstag-Visualisierung
Arbeit (08:00–12:00)
Pause
Arbeit (12:30–16:30)
08:00 16:30
8:30
Bruttoarbeitszeit
0:30
Pausenzeit
8:00
Nettoarbeitszeit
Example 1: Office Work (8-hour day)

Start: 08:00

End: 16:30

Break: 30 minutes (lunch)

Gross working time: 8 hours 30 minutes

Net working time: 8 hours 00 minutes = 8.00 decimal hours

Example 2: Long Day (9+ hours)

Start: 07:00

End: 17:15

Break: 45 minutes (required by law for >9 hrs)

Gross working time: 10 hours 15 minutes

Net working time: 9 hours 30 minutes = 9.50 decimal hours

💡

Tip: Split long breaks — e.g., 30 minutes lunch and 15 minutes afternoon break. This fulfills the 45-minute requirement for more than 9 hours.

Calculate Overtime

Overtime occurs when actual working time exceeds the contractually agreed target hours. The calculator computes overtime automatically when target hours are entered.

Formula
Actual Working Time − Target Working Time = Overtime
Example: Overtime Calculation

Target: 8:00 hours (40-hour week ÷ 5 days)

Start: 07:30 · End: 17:15 · Break: 30 min.

Actual (net): 9:15 hours

Overtime: 9:15 − 8:00 = +1:15 hours (+1.25 decimal hours)

Weekly Overtime Overview

The weekly overview sums all daily overtime and shows the total difference from target hours.

DayTargetActualDifference
Monday 8:00 8:45 +0:45
Tuesday 8:00 8:30 +0:30
Wednesday 8:00 7:30 −0:30
Thursday 8:00 9:00 +1:00
Friday 8:00 8:15 +0:15
Gesamt +2:00
⚠️

Note: Daily working time may be extended to 10 hours if an average of 8 hours per workday is maintained within 6 months.

Calculate Target Hours

Target hours are the contractually agreed working hours that an employee must complete in a given period. The calculation depends on the employment contract.

Daily Target
Weekly hours ÷ Working days per week
Weekly Target
Per employment contract (e.g., 35, 38.5, or 40 hours)
Monthly Target
Weekly hours × 52 weeks ÷ 12 months

Target Hours by Work Model

Target Hours by Work Model
Full-time (40 h)
173.33 Std.
Public Sector (39 h)
169.00 Std.
Industry (35 h)
151.67 Std.
Part-time (30 h)
130.00 Std.
Part-time (20 h)
86.67 Std.
Mini-job (~12 h)
~52.00 Std.
💡

Tip: Enter your target hours in the calculator to instantly see overtime or deficit hours.

Calculate Working Time as Percentage

Working time percentage indicates what fraction of full-time hours a part-time model represents. This is important for contracts, salary calculations, and job postings.

Formel
Part-time hours ÷ Full-time hours × 100 = Working time percentage
100%
40 h Full-time
87.5%
35 h Near full-time
75%
30 h Part-time (¾)
50%
20 h Part-time (half)
37.5%
15 h Part-time
25%
10 h Part-time (¼)
📊 Rechenbeispiel

Example: A part-time contract with 25 weekly hours at 40-hour full-time → 25 ÷ 40 × 100 = 62.5% working time.

Part-Time Working Hours

Part-time employment exists when regular weekly hours are shorter than those of a comparable full-time employee. In Germany, about 30% of all employees work part-time.

The calculator works for all part-time models. Enter your individual target hours and calculate daily net working time, overtime, and decimal hours — just like for full-time.

Part-Time Models Compared

ModelWeekly hrsMonthly hrs (avg)Annual hrs (avg)
Half-time (50%) 20 86.67 1,040
¾ position (75%) 30 130.00 1,560
80% position 32 138.67 1,664
Mini-job (€538) ~12 ~52 ~624
Bridge part-time variable variable variable
💡

Tip: Part-time workers have the same break rules. For 6+ hours of daily work, at least 30 minutes of break is required.

Full-Time Working Hours

Full-time employment means working the full contractual or collectively agreed weekly hours. In Germany, the average full-time week is 37.5 to 40 hours.

The maximum daily working time is 8 hours, extendable to 10 with compensation within 6 months. Maximum weekly: 48 hours (6 workdays × 8 hours).

Industry & Trades

35–40 h/week

IG Metall: 35 h, many trades: 40 h

Public Sector

39–40 h/week

TVöD: 39 h (West), 40 h (East)

Healthcare

38.5–40 h/week

TVöD-K: 38.5 h, practices: often 40 h

IT & Services

37.5–40 h/week

Trust-based working time common

Practical Examples

The following examples show typical working time calculations. You can verify all calculations with our calculator.

Szenario Beginn Ende Pause Brutto Netto Dezimal
Office Day (Standard) 08:00 16:30 30 min 8:30 8:00 8.00
Early Shift 06:00 14:30 30 min 8:30 8:00 8.00
Late Shift 14:00 22:30 30 min 8:30 8:00 8.00
Night Shift 22:00 06:30 30 min 8:30 8:00 8.00
Long Day (45 min break) 07:00 17:15 45 min 10:15 9:30 9.50
Half Day (Part-time) 09:00 13:00 0 min 4:00 4:00 4.00

Example: Full Work Week (40-hour contract)

DayStartEndBreakNet
Monday 08:00 17:00 30 min 8:30
Tuesday 07:30 16:15 30 min 8:15
Wednesday 08:00 16:30 30 min 8:00
Thursday 08:00 17:30 45 min 8:45
Friday 08:00 15:30 30 min 7:00
Total 40:30

Common Working Time Calculation Mistakes

These typical mistakes lead to incorrect calculations. Our calculator avoids all of them automatically.

1

Forgetting to deduct breaks

❌ Problem:

Gross time is reported as net time. 08:00–16:30 incorrectly shows 8.5 hours instead of 8.0 hours (after 30 min break).

✅ Lösung:

Always enter break time. The calculator deducts breaks and shows correct net time.

2

Wrong decimal conversion

❌ Problem:

7 hours 45 minutes is entered as 7.45 instead of the correct 7.75 decimal hours. Error: 45 minutes ≠ 0.45 hours.

✅ Lösung:

Divide minutes by 60: 45 ÷ 60 = 0.75. The calculator shows both formats automatically.

3

Night shift miscalculation

❌ Problem:

Shifts crossing midnight (e.g., 22:00–06:00) calculate negative time instead of 8 hours.

✅ Lösung:

The calculator detects night shifts automatically and calculates correctly across midnight.

4

Ignoring mandatory breaks

❌ Problem:

No break entered for 6+ hour shifts. Payroll becomes inaccurate.

✅ Lösung:

Law requires 30 min (>6 hrs) or 45 min (>9 hrs) breaks. The calculator shows a reminder.

5

Wrong monthly hours

❌ Problem:

Weekly hours multiplied by 4 instead of the correct factor 4.333 (52 ÷ 12).

✅ Lösung:

Correct formula: Weekly hours × 52 ÷ 12. 40 h/week = 173.33 hours/month (not 160).

6

Daily vs weekly overtime

❌ Problem:

Daily fluctuations counted as overtime even when weekly hours are on target.

✅ Lösung:

Calculate overtime on a weekly or monthly basis. The weekly overview shows the full picture.

Benefits of Our Work Time Calculator

🎯

Mathematically Exact

Gross/net time, overtime, decimal conversion, and night shifts calculated without errors. No rounding mistakes.

Instant Calculation

Results displayed in real time — no waiting. Enter start, end, and break times, read results immediately.

📊

Weekly Overview & Chart

All daily entries collected in a weekly overview. The weekly chart compares actual vs. target hours.

🔒

100% Privacy

No registration, no ads, no data transfer. All calculations run locally in the browser.

📱

Mobile & Responsive

Works on smartphone, tablet, and desktop. Optimized for all screen sizes.

💼

For All Professions

Employees, freelancers, mini-jobbers — the calculator adapts to any work model.

Frequently Asked Questions (FAQ)

How do I calculate my daily working time?

End time minus start time minus break time equals net working time. Example: 08:00 to 16:30 with 30 minutes break = 8 hours net. The calculator does this automatically.

What break times are legally required?

30 minutes for more than 6 hours, 45 minutes for more than 9 hours. Breaks can be split into segments of at least 15 minutes.

How do I convert hours and minutes to decimal?

Divide minutes by 60 and add to hours. 7 hours 45 minutes = 7 + (45÷60) = 7.75 decimal hours.

How do I calculate overtime?

Actual time minus target time = overtime. Example: 8:45 worked at 8:00 target = +0:45 overtime.

How many working hours are in a month?

At 40 hours/week: 173.33 hours (40 × 52 ÷ 12). At 35 hours: 151.67 h/month. At 20 hours part-time: 86.67 h/month.

What is the difference between gross and net working time?

Gross = total time from start to end. Net = gross minus breaks. Only net time is compensated.

Does the calculator work for night shifts?

Yes, it detects night shifts automatically. If end time is before start time (e.g., 22:00–06:00), it calculates correctly across midnight.

How many hours can you work per day maximum?

Maximum 8 hours per workday. Extension to 10 hours possible if 8-hour average is maintained over 6 months.

Do working time rules apply when working from home?

Yes, labor law applies equally at home. Maximum hours, break rules, and 11-hour rest periods remain unchanged.

What are target hours?

Target hours are contractually agreed working hours per day, week, or month. At 40 hours/week with 5 workdays, daily target is 8 hours.

What are industrial minutes and decimal hours?

Industrial minutes divide an hour into 100 units instead of 60. 30 regular minutes = 50 industrial minutes = 0.50 decimal hours.

Is the calculator really free?

Yes, completely free with no ads. No registration, no hidden costs, no data transfer. All calculations run locally.

How many hours do I work per year?

At 40 h/week, 30 vacation days, 10 holidays: (52×40) − (30×8) − (10×8) = 1,760 net annual hours.

Must employers record working time?

Yes, following the ECJ ruling 2019 and Federal Labor Court 2022, employers must systematically record start, end, and duration of daily working hours.

Calculate Your Working Hours Now

Free, ad-free, and no registration required — calculate directly in the browser.

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